<template>
  <div>
    <cascade />
    <div class="main">
      <div class="py-container">
        <!--bread面包屑导航-->
        <div class="bread">
          <ul class="fl sui-breadcrumb">
            <li>
              <a href="#">全部结果</a>
            </li>
          </ul>
          <ul class="fl sui-tag">
            <!-- 分类的面包屑 -->
            <li v-if="searchParams.categoryName" class="with-x">{{searchParams.categoryName}}<i @click="deleteCategoryName">×</i></li>
            <!-- 关键字面包屑 -->
            <li v-if="searchParams.keyword" class="with-x">{{searchParams.keyword}}<i @click="deleteKeyword">×</i></li>
            <!-- 品牌面包屑 -->
            <li v-if="searchParams.trademark" class="with-x">{{searchParams.trademark.split(':')[1]}}<i @click="deleteTrademark">×</i></li>
            <!-- 平台售卖属性面包屑 -->
            <li v-for="(item,index) in searchParams.props" :key="index" class="with-x">{{item.split(":")[1]}}<i @click="deleteProps(index)">×</i></li>
          </ul>
        </div>

        <!--selector-->
        <SearchSelector @attrInfo="attrInfo" @tradeMarkInfo="trademark"/>

        <!--details-->
        <div class="details clearfix">
          <div class="sui-navbar">
            <!-- 排序结构 -->
            <div class="navbar-inner filter">
              <ul class="sui-nav">
                <li :class="{active:isone}" @click="changeOrder('1')">
                  <a>综合 <span v-show="isone&&isAsc">↑</span><span v-show="isone&&isDesc">↓</span></a>
                </li>
                <li :class="{active:istwo}" @click="changeOrder('2')">
                  <a>价格 <span v-show="istwo&&isAsc">↑</span><span v-show="istwo&&isDesc">↓</span></a>
                </li>
              </ul>
            </div>
          </div>
          <!-- 畅销商品 -->
          <div class="goods-list">
            <ul class="yui3-g">
              <li v-for="item in goodsList" :key="item.id" class="yui3-u-1-5">
                <div class="list-wrap">
                  <div class="p-img">
                    <!-- 路由跳转时别忘记带params参数 -->
                    <router-link :to="`/detail/${item.id}`">
                      <img v-lazy="item.defaultImg" />
                    </router-link>
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥ </em>
                      <i>{{item.price}}</i>
                    </strong>
                  </div>
                  <div class="attr">
                    <router-link :to="`/detail/${item.id}`">{{item.title}}</router-link>
                  </div>
                  <div class="commit">
                    <i class="command">已有<span>{{item.hotScore}}</span>人评价</i>
                  </div>
                  <div class="operate">
                    <a href="success-cart.html" target="_blank" class="sui-btn btn-bordered btn-danger">加入购物车</a>
                    <a href="javascript:void(0);" class="sui-btn btn-bordered">收藏</a>
                  </div>
                </div>
              </li>
            </ul>
          </div>
          <!-- 分页器 -->
          <Pagination :pageNo="searchParams.pageNo" :pageSize="searchParams.pageSize" :total="total" :continues="5" @getPageNo="PageNo"></Pagination>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
  import SearchSelector from './SearchSelector/SearchSelector'
  import { mapGetters, mapState } from "vuex";
  export default {
    name: 'search',
    data () {
      return {
        searchParams: {
          "category1Id": "",  // 一级分类id
          "category2Id": "",  // 二级分类id
          "category3Id": "",  // 三级分类id
          "categoryName": "",  // 分类名称
          "keyword": "",  // 关键字
          "order": "1:desc",  // 排序：初始值为1：desc综合降序
          "pageNo": 1,  // 带不带默认都是1
          "pageSize": 5,  // 每一页几条数据
          "props": [],  // 平台售卖属性的参数
          "trademark": ""  // 品牌
        }
      }
    },
    beforeMount(){
      // ES6新增的合并对象语法
      // 在发生请求前把请求需要的数据都准备好整理完毕
      Object.assign(this.searchParams,this.$route.query,this.$route.params)
    },
    mounted () {
      this.getSearch()
    },
    watch: {
      // 侦听路由信息是否发生变化
      $route(){
        // 先把数据清空
        this.searchParams.category1Id = undefined
        this.searchParams.category2Id = undefined
        this.searchParams.category3Id = undefined
        // 然后再次整理数据对象
        Object.assign(this.searchParams,this.$route.query,this.$route.params)
        // console.log(this.searchParams);
        this.getSearch()
      }
    },
    components: {
      SearchSelector
    },
    methods: {
      // 子组件触发页码改变事件
      PageNo(page){
        // console.log(page);
        this.searchParams.pageNo = page
        this.getSearch()
      },
      // 排序操作
      changeOrder(flag){
        // flag形参：是一个标记，代表用户点击的是综合还是价格
        let originFlag = this.searchParams.order.split(':')[0]
        let originSort = this.searchParams.order.split(':')[1]
        // 准备一个新order属性值
        let newOrder = ''
        // 判断点击的是综合还是价格
        if (flag === originFlag) {
          // 点击的是同一个，改变升降
          let sort = originSort==='asc'?'desc':'asc'
          newOrder = `${originFlag}:${sort}`
        }else{
          // 点击的是另一个
          newOrder = `${flag}:${'desc'}`
        }
        this.searchParams.order = newOrder
        this.getSearch()
      },
      deleteProps(index){
        this.searchParams.props.splice(index,1)
        this.getSearch()
      },
      // 平台信息点击事件
      attrInfo(item,attrItem){
        // 整理要带过去的参数的格式
        let props = `${item.attrId}:${attrItem}:${item.attrName}`
        // 数组去重
        if (this.searchParams.props.indexOf(props)===-1) {
          this.searchParams.props.push(props)
          this.getSearch()
        }
      },
      // 删除品牌
      deleteTrademark(){
        this.searchParams.trademark = undefined
        this.getSearch()
      },
      // 自定义事件子传父
      trademark(item){
        console.log(item);
        this.searchParams.trademark = `${item.tmId}:${item.tmName}`
        this.getSearch()
      },
      // 删除关键字
      deleteKeyword(){
        this.searchParams.keyword = undefined
        this.getSearch()
        this.$bus.$emit('clear')
        this.$router.push({
          name:'search',
          query:this.$route.query
        })
      },
      // 删除分类名字
      deleteCategoryName(){
        // 属性为空的字段还是会把相应字段发送给服务器，但如果把相应字段设置为undefined，当前字段不会发给服务器
        this.searchParams.categoryName = undefined
        this.searchParams.category1Id = undefined
        this.searchParams.category2Id = undefined
        this.searchParams.category3Id = undefined
        this.getSearch()
        // 地址栏也需要修改
        // 怎么改？进行路由跳转。前面删掉参数后现在路由内没有参数了，自己跳转自己，就可以把后面的参数删掉了
        // 但是要注意要严谨，路径上的params参数不应该删除
        if (this.$route.params) {
          this.$router.push({name:'search',params:this.$route.params})
        }
      },
      getSearch(){
        this.$store.dispatch('search/getSearchList', this.searchParams)
      }
    },
    computed: {
      // 获取search模块展示多少数据产品
      ...mapState({
        total: state=>state.search.getList.total
      }),
      // 判断order中是1还是2.通过计算属性，返回一个布尔值
      isone(){
        return this.searchParams.order.indexOf('1')!==-1
      },
      istwo(){
        return this.searchParams.order.indexOf('2')!==-1
      },
      // 判断order中是asc还是desc.通过计算属性，返回一个布尔值
      isAsc(){
        return this.searchParams.order.indexOf('asc')!==-1
      },
      isDesc(){
        return this.searchParams.order.indexOf('desc')!==-1
      },
      // 仓库中state是分模块的,而getters在没开启命名空间情况下是共享的,不分模块的,因此mapState是对象形式,mapGetters是数组形式
      ...mapGetters(['goodsList'])
    }
  }
</script>

<style lang="less" scoped>
  .main {
    margin: 10px 0;

    .py-container {
      width: 1200px;
      margin: 0 auto;

      .bread {
        margin-bottom: 5px;
        overflow: hidden;

        .sui-breadcrumb {
          padding: 3px 15px;
          margin: 0;
          font-weight: 400;
          border-radius: 3px;
          float: left;

          li {
            display: inline-block;
            line-height: 18px;

            a {
              color: #666;
              text-decoration: none;

              &:hover {
                color: #4cb9fc;
              }
            }
          }
        }

        .sui-tag {
          margin-top: -5px;
          list-style: none;
          font-size: 0;
          line-height: 0;
          padding: 5px 0 0;
          margin-bottom: 18px;
          float: left;

          .with-x {
            font-size: 12px;
            margin: 0 5px 5px 0;
            display: inline-block;
            overflow: hidden;
            color: #000;
            background: #f7f7f7;
            padding: 0 7px;
            height: 20px;
            line-height: 20px;
            border: 1px solid #dedede;
            white-space: nowrap;
            transition: color 400ms;
            cursor: pointer;

            i {
              margin-left: 10px;
              cursor: pointer;
              font: 400 14px tahoma;
              display: inline-block;
              height: 100%;
              vertical-align: middle;
            }

            &:hover {
              color: #28a3ef;
            }
          }
        }
      }

      .details {
        margin-bottom: 5px;

        .sui-navbar {
          overflow: visible;
          margin-bottom: 0;

          .filter {
            min-height: 40px;
            padding-right: 20px;
            background: #fbfbfb;
            border: 1px solid #e2e2e2;
            padding-left: 0;
            border-radius: 0;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);

            .sui-nav {
              position: relative;
              left: 0;
              display: block;
              float: left;
              margin: 0 10px 0 0;

              li {
                float: left;
                line-height: 18px;

                a {
                  display: block;
                  cursor: pointer;
                  padding: 11px 15px;
                  color: #777;
                  text-decoration: none;
                }

                &.active {
                  a {
                    background: #e1251b;
                    color: #fff;
                  }
                }
              }
            }
          }
        }

        .goods-list {
          margin: 20px 0;

          ul {
            display: flex;
            flex-wrap: wrap;

            li {
              height: 100%;
              width: 20%;
              margin-top: 10px;
              line-height: 28px;

              .list-wrap {
                .p-img {
                  padding-left: 15px;
                  width: 215px;
                  height: 255px;

                  a {
                    color: #666;

                    img {
                      max-width: 100%;
                      height: auto;
                      vertical-align: middle;
                    }
                  }
                }

                .price {
                  padding-left: 15px;
                  font-size: 18px;
                  color: #c81623;

                  strong {
                    font-weight: 700;

                    i {
                      margin-left: -5px;
                    }
                  }
                }

                .attr {
                  padding-left: 15px;
                  width: 85%;
                  overflow: hidden;
                  margin-bottom: 8px;
                  min-height: 38px;
                  cursor: pointer;
                  line-height: 1.8;
                  display: -webkit-box;
                  -webkit-box-orient: vertical;
                  -webkit-line-clamp: 2;

                  a {
                    color: #333;
                    text-decoration: none;
                  }
                }

                .commit {
                  padding-left: 15px;
                  height: 22px;
                  font-size: 13px;
                  color: #a7a7a7;

                  span {
                    font-weight: 700;
                    color: #646fb0;
                  }
                }

                .operate {
                  padding: 12px 15px;

                  .sui-btn {
                    display: inline-block;
                    padding: 2px 14px;
                    box-sizing: border-box;
                    margin-bottom: 0;
                    font-size: 12px;
                    line-height: 18px;
                    text-align: center;
                    vertical-align: middle;
                    cursor: pointer;
                    border-radius: 0;
                    background-color: transparent;
                    margin-right: 15px;
                  }

                  .btn-bordered {
                    min-width: 85px;
                    background-color: transparent;
                    border: 1px solid #8c8c8c;
                    color: #8c8c8c;

                    &:hover {
                      border: 1px solid #666;
                      color: #fff !important;
                      background-color: #666;
                      text-decoration: none;
                    }
                  }

                  .btn-danger {
                    border: 1px solid #e1251b;
                    color: #e1251b;

                    &:hover {
                      border: 1px solid #e1251b;
                      background-color: #e1251b;
                      color: white !important;
                      text-decoration: none;
                    }
                  }
                }
              }
            }
          }
        }

        .page {
          width: 733px;
          height: 66px;
          overflow: hidden;
          float: right;

          .sui-pagination {
            margin: 18px 0;

            ul {
              margin-left: 0;
              margin-bottom: 0;
              vertical-align: middle;
              width: 490px;
              float: left;

              li {
                line-height: 18px;
                display: inline-block;

                a {
                  position: relative;
                  float: left;
                  line-height: 18px;
                  text-decoration: none;
                  background-color: #fff;
                  border: 1px solid #e0e9ee;
                  margin-left: -1px;
                  font-size: 14px;
                  padding: 9px 18px;
                  color: #333;
                }

                &.active {
                  a {
                    background-color: #fff;
                    color: #e1251b;
                    border-color: #fff;
                    cursor: default;
                  }
                }

                &.prev {
                  a {
                    background-color: #fafafa;
                  }
                }

                &.disabled {
                  a {
                    color: #999;
                    cursor: default;
                  }
                }

                &.dotted {
                  span {
                    margin-left: -1px;
                    position: relative;
                    float: left;
                    line-height: 18px;
                    text-decoration: none;
                    background-color: #fff;
                    font-size: 14px;
                    border: 0;
                    padding: 9px 18px;
                    color: #333;
                  }
                }

                &.next {
                  a {
                    background-color: #fafafa;
                  }
                }
              }
            }

            div {
              color: #333;
              font-size: 14px;
              float: right;
              width: 241px;
            }
          }
        }
      }
    }
  }
</style>